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Which expression below is equal to 6(2x+4) - x² +15-x? A. x² +11x +9 C. 14x +39 B. x² +11x +39 D. 10x² +9

Which expression below is equal to 6(2x+4) - x² +15-x? A. x² +11x +9 C. 14x +39 B. x² +11x +39 D. 10x² +9
asked 100k views
1 vote
Which expression below is equal to 6(2x+4) - x² +15-x?

A. x² +11x +9
C. 14x +39
B. x² +11x +39
D. 10x² +9

asked
User Joshua Bakker
by
8.6k points

1 Answer

3 votes

Answer:

B

Explanation:


6(2x+4) - x^2+15-x\\=12x + 24-x^2+15-x\\=-x^2+24+15+12x-x\\=-x^2+11x+39

The closest answer you have provided is B.

answered
User David Ruhmann
by
8.5k points
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